QUICKPOINT

Highlights

Grinding Process

Special solutions

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Technical data

Equipment and Options

Workpieces

QUICKPOINT

QUICKPOINT - Cylindrical grinding machines

Flexible high-performance grinding machine

High-speed grinding with QUICKPOINT combines JUNKER precision with maximum flexibility. QUICKPOINT machines can be used for a wide range of applications, and at the same time boast impressive productivity. The result: versatility and excellent workpiece quality.

Highlights

High-speed grinding with sophisticated CBN/diamond grinding technology
Excellent part quality with one-time clamping of workpieces
Maximum availability with fully automated grinding process
Fast grinding speed with thorough coolant penetration of active grinding zone
Fast re-tooling with highly flexible machine concept

Grinding process descriptions

Grinding with QUICKPOINT is OD high-speed grinding using single-point contact in the finish grinding area. QUICKPOINT works with an extremely low-wear CBN or diamond wheel just a few millimeters wide. By creating a relief angle, the contact zone between wheel and workpiece is reduced from a contact line to a contact point.

QUICKPOINT standard operations are shoulders, tapers, chamfers and plunge cuts. In addition, flute and thread grinding, as well as polygonal and surface grinding can also be integrated.

Special solutions

Fast changeover for low downtimes – the 3-point mounting system

This system has been applied to the wheelhead, workhead and tailstock and shortens the machine’s tooling times.

Fast changeover and tooling times (< 2 min for center points, < 20 min for grinding wheels)
Easy-to-mount
Optimal centering
Axially mounted with screwed-on grinding wheel flange, allowing changeover in rotational direction
Concentricity: <= 2/1000 mm

Versatility pays

With a wide selection of wheelhead combinations, the QUICKPOINT line offers OD grinding solutions for practically any application: from the compact QUICKPOINT 1000 for smaller parts, to the QUICKPOINT 5000 for medium-sized parts, all the way to the QUICKPOINT 6 for large workpieces. Wherever you use a QUICKPOINT, it guarantees a low-cost manufacturing process.

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1000

3000

5000

6XL

Technical data: QUICKPOINT 1S

Wheelheader Number: 1
Grinding Length: 150 mm
Clamping Length: 150 mm
Center Height: 100 mm
Component Weight: 5 kg
Grinding Wheel Diameter: 350 mm
Swing Diameter: 80 mm
WxDxH mm (without peripherals): 1800 x 2500 x 2100
Weight: 10000 kg

Wheelhead QUICKPOINT 1S

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Technical data: QUICKPOINT 1000

Wheelheader Number: 1
Grinding Length: 150 mm
Clamping Length: 150 mm
Center Height: 100 mm
Component Weight: 5 kg
Grinding Wheel Diameter: 350 mm
Swing Diameter: 80 mm
WxDxH mm (without peripherals): 1500 x 2500 x 2100
Weight: 9000 kg

Wheelhead QUICKPOINT 1000

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Technical data: QUICKPOINT 3000

Wheelheader Number: 1
Grinding Length: 500 mm
Clamping Length: 500 mm
Center Height: 150 mm
Component Weight: 15 kg
Grinding Wheel Diameter: 350 mm
Swing Diameter: 150 mm
WxDxH mm (without peripherals): 3400 x 2800 x 2200
Weight: 12000 kg

Wheelhead QUICKPOINT 3000

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Technical data: QUICKPOINT 5000

Wheelheader Number: 1
Grinding Length: 700 mm
Clamping Length: 700 mm
Center Height: 170 mm
Component Weight: 130 kg
Grinding Wheel Diameter: 500 mm
Swing Diameter: 280 mm
WxDxH mm (without peripherals): 4900 x 3400 x 2350
Weight: 14000 kg

Wheelhead QUICKPOINT 5000

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Technical data: QUICKPOINT 6S

Wheelheader Number: 1; 2
Grinding Length: 1000 mm; 750 mm
Clamping Length: 1200 mm
Center Height: 170 mm
Component Weight: 150 kg
Grinding Wheel Diameter: 500/700 mm
Swing Diameter: 280/320 mm
WxDxH mm (without peripherals): 4100 x 3750 x 2450
Weight: 21000 kg; 25000 kg

Wheelhead QUICKPOINT 6S

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Technical data: QUICKPOINT 6L

Wheelheader Number: 1; 2
Grinding Length: 1800 mm; 1500 mm
Clamping Length: 2000 mm
Center Height: 170 mm
Component Weight: 200 kg
Grinding Wheel Diameter: 500/700 mm
Swing Diameter: 280/320 mm
WxDxH mm (without peripherals): 4900 x 3750 x 2450
Weight: 24000 kg; 28000 kg

Wheelhead QUICKPOINT 6L

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Technical data: QUICKPOINT 6XL

Wheelheader Number: 1; 2
Grinding Length: 2800 mm; 2500 mm
Clamping Length: 3000 mm
Center Height: 170 mm
Component Weight: 300 kg
Grinding Wheel Diameter: 500/700 mm
Swing Diameter: 280/320 mm
WxDxH mm (without peripherals): 6400 x 3750 x 2450
Weight: 28000 kg; 32000 kg

Wheelhead QUICKPOINT 6XL

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Equipment and Options

CONTROL SYSTEM: The Erwin Junker Operator Panel was specifically developed to control grinding machines. All machine components are controlled using the operator panel – irrespective of the series and the used control system. The identical structure, intuitive menu guidance and visualization of the workpiece geometry make for extreme user convenience and flexibility in operation. Programming takes place directly using the operator panel or an external programming tool.
ABRASIVE: Depending on the application, the abrasive CBN or diamond is used. The basic bodies of the grinding wheels comprise steel or carbon. In conjunction with CBN, it can make sense to use a carbon base body: It is light, has vibration-damping properties and remains dimensionally stable even at high speeds.
DRESSING UNIT: Grinding wheel dressing is CNC controlled. A driven diamond dressing wheel or a workpiece-dependent diamond profile roller can be used. Dressing takes place manually or using an automatic dressing program with grinding wheel compensation.
MACHINE BED: The machine bed made of mineral cast provides impressive damping behavior and torsional rigidity. The temperature stability allows fluctuations in the ambient temperature to be compensated with a minimum of effort, ensuring a high level of dimensional stability throughout the whole day.
CARBON GRINDING WHEEL: All JUCENTER versions can also be equipped with carbon grinding wheels. Technical advantages are higher cushioning and reduced weight. There is also an important economic aspect: higher productivity thanks to longer tool life and dressing cycles, as well as significantly fewer wheel changes.
FIRE PROTECTION AND LTA AIR FILTERS: In case of an fire, the machine interior is automatically hermetically sealed, suffocating a fire before it has a chance to spread. If required, extinguishers (CO² or water mist systems) and exhaust air purification systems can be additionally installed. A competent partner for fire protection and filtration solution solutions is LTA Lufttechnik GmbH, which also belongs to the JUNKER Group and which researches, develops and produces filtration systems for industrial air purification.

The Filtration systems
LOADING SYSTEMS: JUNKER offers both internal and external loading systems for all its machine series, depending on customer and workpiece requirements. The loading systems can be combined with different infeed and discharge systems such as conveyor belts or custom tailored systems.
MEARSUREMENT SYSTEMS: The measurement systems are also individually adjusted to the various workpieces and customer specifications. The measurement processes entail evaluating the recorded measured values and utilizing them for measurement correction in line with the prepared measurement strategy. A grinding wheel measuring system to determine the diameter, axial position and width of the grinding wheel completes the wide range of systems on offer.